Question: What is the Class II combustible liquid with the highest median lethal concentration whose has effect is allyl glycidyl ether exposure?
Paraphrase: What is the Class II flamable liquid with the highest median deadly attention whose has effect is allyl glycidyl ether exposure?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q21009057 . ?ent wdt:P2712 ?obj . ?ent wdt:P1542 wd:Q21167694 } ORDER BY DESC(?obj)LIMIT 5 
Answer: allyl glycidyl ether, allyl glycidyl ether